/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.carbondata.scan.expression;

import org.apache.carbondata.core.carbon.metadata.datatype.DataType;
import org.apache.carbondata.scan.filter.intf.ExpressionType;
import org.apache.carbondata.scan.filter.intf.RowIntf;

public class LiteralExpression extends LeafExpression {

  /**
   *
   */
  private static final long serialVersionUID = 1L;
  private Object value;
  private DataType dataType;

  public LiteralExpression(Object value, DataType dataType) {
    this.value = value;
    this.dataType = dataType;
  }

  @Override public ExpressionResult evaluate(RowIntf value) {
    ExpressionResult expressionResult = new ExpressionResult(dataType, this.value);
    return expressionResult;
  }

  public ExpressionResult getExpressionResult() {
    ExpressionResult expressionResult = new ExpressionResult(dataType, this.value);
    return expressionResult;
  }

  @Override public ExpressionType getFilterExpressionType() {
    // TODO Auto-generated method stub
    return ExpressionType.LITERAL;
  }

  @Override public String getString() {
    // TODO Auto-generated method stub
    return "LiteralExpression(" + value + ')';
  }

  /**
   * getLiteralExpDataType.
   *
   * @return
   */
  public DataType getLiteralExpDataType() {
    return dataType;
  }

}
